Alert archive / Vermont / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 22, NWS Burlington, VT

June 30, 2021Essex County, New York; Addison County, Rutland County, Windsor County, Vermont

NWS Burlington, VT issued this severe thunderstorm warning at Jun 30, 2021, 1:37 PM EDT for Essex County, New York; Addison County, Rutland County, Windsor County, Vermont. It was in force for 53 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 30, 2021, 1:37 PM EDT (17:37 UTC)
Expired: Jun 30, 2021, 2:30 PM EDT
In force: 53 min
Issued by: NWS Burlington, VT
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Essex County, NY, Addison County, VT, Rutland County, VT, Windsor County, VT

The radar

The Burlington radar (KCXX), 86 km from the middle of the area, began a volume at 17:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 30, 2:02 PM EDT	TSTM WND DMG	1 Sse Brandon, VT	TREE DOWN ON NICKERSON ROAD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 30, 12:06 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 5.6 hours before the alert went out and 125 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 113 J/kg
Mixed-layer CIN: -257 J/kg
Mixed-layer LCL: 1162 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

701 
WUUS51 KBTV 301737
SVRBTV
NYC031-VTC001-021-027-301830-
/O.NEW.KBTV.SV.W.0022.210630T1737Z-210630T1830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Burlington VT
137 PM EDT Wed Jun 30 2021

The National Weather Service in Burlington has issued a

* Severe Thunderstorm Warning for...
  Southeastern Essex County in northern New York...
  Southwestern Addison County in central Vermont...
  Northern Rutland County in southern Vermont...
  Northwestern Windsor County in southern Vermont...

* Until 230 PM EDT.

* At 135 PM EDT, a severe thunderstorm was located near Fort 
  Ticonderoga in eastern Essex County New York, moving east at 35 
  mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor hail damage to vehicles is possible. Expect wind 
           damage to trees and powerlines.

* Locations impacted include...
  Rutland, Castleton, Sudbury, Killington, Rutland City, Orwell,
  Benson, Chittenden, West Rutland, Whiting, Goshen, West Castleton,
  Hubbardton, Stockbridge, Proctor, Brandon, Mendon, Leicester,
  Pittsfield and Pittsford.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

If on or near Lake Champlain, get away from the water and move 
indoors or inside a vehicle. Remember, lightning can strike out to 
15 miles from the parent thunderstorm. If you can hear thunder, you 
are close enough to be struck by lightning. Move to safe shelter 
now!  Do not be caught on the water in a thunderstorm.

&&

LAT...LON 4364 7342 4367 7341 4369 7341 4373 7337
      4374 7337 4377 7335 4379 7336 4381 7338
      4381 7342 4390 7339 4384 7265 4358 7271
TIME...MOT...LOC 1735Z 278DEG 31KT 4381 7338 

HAIL...1.00IN
WIND...60MPH
 
$$

Kutikoff

2 follow-up statements

347 
WWUS51 KBTV 301750
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
150 PM EDT Wed Jun 30 2021

NYC031-301800-
/O.CAN.KBTV.SV.W.0022.000000T0000Z-210630T1830Z/
Essex NY-
150 PM EDT Wed Jun 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ESSEX COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
central and southern Vermont.

LAT...LON 4363 7335 4389 7325 4384 7265 4358 7271
TIME...MOT...LOC 1750Z 289DEG 30KT 4376 7321 

$$

VTC001-021-027-301830-
/O.CON.KBTV.SV.W.0022.000000T0000Z-210630T1830Z/
Addison VT-Rutland VT-Windsor VT-
150 PM EDT Wed Jun 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EDT
FOR SOUTH CENTRAL ADDISON...NORTHERN RUTLAND AND NORTHWESTERN WINDSOR
COUNTIES...

At 150 PM EDT, a severe thunderstorm was located over Orwell, moving 
east at 35 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to trees and powerlines.

Locations impacted include...
Rutland, Castleton, Sudbury, Killington, Rutland City, Benson,
Chittenden, West Rutland, Whiting, Goshen, West Castleton,
Hubbardton, Stockbridge, Proctor, Brandon, Mendon, Leicester,
Pittsfield, Pittsford and Fair Haven.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 4363 7335 4389 7325 4384 7265 4358 7271
TIME...MOT...LOC 1750Z 289DEG 30KT 4376 7321 

HAIL...1.50IN
WIND...60MPH
 
$$

Kutikoff

596 
WWUS51 KBTV 301805
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
205 PM EDT Wed Jun 30 2021

VTC001-021-027-301830-
/O.CON.KBTV.SV.W.0022.000000T0000Z-210630T1830Z/
Addison VT-Rutland VT-Windsor VT-
205 PM EDT Wed Jun 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EDT
FOR SOUTH CENTRAL ADDISON...NORTHEASTERN RUTLAND AND NORTHWESTERN
WINDSOR COUNTIES...

At 204 PM EDT, a severe thunderstorm was located over Hortonia,
moving east at 35 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Law enforcement.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to trees and powerlines.

Locations impacted include...
Rutland, Castleton, Killington, Rutland City, Stockbridge, Proctor,
Brandon, Chittenden, Mendon, Leicester, Pittsfield, West Rutland,
Pittsford, Goshen, Hubbardton, Bethel, Sudbury, Rochester,
Bridgewater and Barnard.

Law enforcement reported wind damage in the Ticonderoga area around 
130 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 4362 7319 4388 7314 4384 7265 4358 7271
TIME...MOT...LOC 1804Z 278DEG 31KT 4377 7326 

HAIL...1.50IN
WIND...60MPH
 
$$

Kutikoff

The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 30, 12:13 PM EDT	Special Weather Statement	BTV	Essex	62 min
Jun 30, 12:46 PM EDT	Severe Thunderstorm Warning	BTV	Essex	59 min
Jun 30, 4:50 PM EDT	Special Weather Statement	BTV	St. Lawrence	55 min
Jun 30, 12:44 PM EDT	Special Weather Statement	BTV	Chittenden	46 min
Jun 30, 1:15 PM EDT	Severe Thunderstorm Warning	BTV	Chittenden, Lamoille, Washington	60 min
Jun 30, 1:45 PM EDT	Special Weather Statement	BTV	Orange	60 min
Jun 30, 2:17 PM EDT	Special Weather Statement	BTV	Caledonia	58 min
Jun 30, 2:24 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Rutland, Windsor	66 min
Jun 30, 2:56 PM EDT	Special Weather Statement	BTV	Windsor	49 min
Jun 30, 7:28 PM EDT	Special Weather Statement	BTV	Caledonia, Essex, Lamoille, Orleans	62 min

Nearby

Severe Thunderstorm Warnings in Vermont, 2021 Severe Thunderstorm Warnings in New York, 2021 Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.